GPT-5.4-Cyber

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OpenAI Launches GPT-5.4-Cyber to Boost Defensive Cybersecurity

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OpenAI Launches GPT-5.4-Cyber to Boost Defensive Cybersecurity

OpenAI unveils GPT-5.4-Cyber, a cybersecurity-focused model built to help defenders analyze malware and fix software bugs. The company is also expanding its Trusted Access for Cyber (TAC) program to thousands of verified experts.

Zyxel
Zynga
Zyklon B hacker
Zygote
Zurich Insurance Group
Zues Malware
Zues
ZTNA
ZTA Gateways
ZTA

April 16, 2026